Well, at the risk of getting penalized by other "know it all's " on this forum for speaking my mind and my bad grammar, I'll just say that the idiot at ford that came up with this "capless filler neck" should have been fired. What a stupid idea. Dirt gets in, vapor gets out,ect. You members that own one with this design I feel sorry for you. ANOTHER REASON I OWN A 2010.(KMA)